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Sidan uppdaterades: 2012-09-11 15:12
| Författare |
Jonathan Westin Gunnar Almevik Jacob Thomas |
|---|---|
| Publicerad i | The 3rd International Conference on Science and Engineering in Arts, Heritage, and Archaeology (SEAHA) at the University of Brighton, Brighton, UK on 19-20 June 2017. |
| Publiceringsår | 2017 |
| Publicerad vid |
Institutionen för kulturvård |
| Språk | en |
| Länkar |
https://gup.ub.gu.se/file/206933 |
| Ämnesord | Augmented Reality, Multi-spectral imaging, Virtual Reality, Documentation, Structure-from-motion |
| Ämneskategorier | Historia, Biblioteks- och informationsvetenskap, Mänsklig interaktion med IKT, Interaktionsteknik |
Technical photography has long been a means to document the materials and condition of cultural heritage. Through filter and illuminant selection, not only visible but also UV and IR light, as well as stimulated emission (fluorescence and phosphorescence), can be used in image documentation. In the heritage documentation context multi- and hyper-spectral imaging can be thought of as extensions to technical photography, but with respectively increasing degrees of resolution. Multispectral imaging typically uses several band pass filters or specific illumination to generate a stack of images, which if properly processed can yield a low resolution spectrum per unit region of the image. Hyperspectral imaging on the other hand typically employs an imaging spectrograph and camera such that high spectral and spatial resolution images where there can be hundreds of layers in the image cube and where each pixel contains a full spectrum. With recent advances in imaging as well as computing technology, technical photography is seeing a renaissance. New visualisation technologies such as Augmented- and Virtual Reality can help multi- and/or hyper-spectral documentation find new applications in both management and conservation practices of cultural heritage objects and sites.
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